“making anonymous inner class a lambda” sonar suggestion

Question

Im having trouble in understanding the way lambda works or how to implement the suggestion,

I have this code

JsonSerializer<Date> ser = new JsonSerializer<Date>() {
                @Override
                public JsonElement serialize(Date src, Type typeOfSrc, JsonSerializationContext context) {
                    return src == null ? null : new JsonPrimitive(src.getTime());
                }
            };

And I tried to follow the suggestion like so:

JsonDesializer<Date> ser = (Date src, Type typeOfSrc,
                JsonSerializationContext context) -> src == null ? null : new JsonPrimitive(src.getTime());

But that doesn't compile, can someone help me a bit? thanks:)

Answer 1

You have a typo:

JsonDesializer -> JsonSerializer

This compiles:

JsonSerializer<Date> ser
            = (Date src, Type typeOfSrc, JsonSerializationContext context) -> src == null ? null : new JsonPrimitive(src.getTime());